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Technical terms
Power train
Collective term designating all
components used to generate and
transmit motive power to the drive
axles, including
ț engine
ț clutch/torque converter
ț transmission
ț transfer case
ț drive shaft
ț differential
ț axle shafts/axles
Program mode selector switch
Used to switch the automatic trans-
mission between standard operation S
and comfort operation C.
Remote Vehicle Diagnostics
Transmission of vehicle data and
current location to the Mercedes-Benz
Customer Assistance Center for
subscribers to Tele Aid service.
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the
vehicle interior for a short time after
the engine has been turned off.
Restraint systems
Seat belts, belt tensioners, airbags and
child restraint systems. As inde-
pendent systems, their protective
functions complement one another.
RON
(R
esearch Octane Number)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired deto-
nation (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Shift lock
When the vehicle is parked, this lock
prevents the transmission gear
selector lever from being moved out of
position P without SmartKey turned
and brake pedal depressed.
SRS
(S
upplemental Restraint System)
Seat belts, emergency tensioning
device and airbags. Though indepen-
dent systems, they are closely inter-
faced to provide effective occupant
protection.